New Sennheiser PMX686I Sports in-Ear Earbud Neckband Audio Headphones Headset New Sennheiser PMX686I Sports In-Ear Earbud Neckband Audio Headphones Headset Inline smart remote and mic on the cable are compatible with most smartphones and portable players (including Android, Windows Mobile and Blackberry devices) Maximum ruggedness and durability Sweat and water-resistant Vertical in-ear design for greater situational awareness and safety Antimicrobial ear adapters (SteriTouch). Cable length - 47 inch single-sided cable . Impedance - 30 ohm